Project progress of Xianyou pumped storage power station

Construction period: 2009-2014.

Overall schedule arrangement: The main project will take 51 months from the excavation of the roof arch of the factory building to the first unit to generate electricity, and the total construction period to the last unit to generate electricity will be 63 months. The main project will be completed in 2009 The roof arch excavation of the plant will be carried out on May 1, 2013, and the first unit will be put into commercial operation on October 31, 2013. The latter three units are expected to be put into commercial operation as follows: Unit 2 on February 28, 2014; Unit 3 on June 30, 2014; Unit 4 on October 31, 2014. The project construction was completed on October 31, 2014, and all four units were put into commercial operation.

By the end of 2011, a total investment of 1,837.11 million yuan has been completed (estimated).

1. Reservoir project marked on C1:

Construction assistance: All construction auxiliary projects have been completed.

Huanku Highway: The support and roadbed backfill construction of the Huanku Highway will be completed by the end of the year.

Main dam: The main dam toe plate consolidation grouting and curtain grouting construction will be completed by the end of the year; dam settlement will be carried out from April to September, and main dam face concrete pouring construction will begin in October, and is expected to be completed in mid-January 2012 construction.

Wanwei Auxiliary Dam: No construction has been scheduled due to road congestion. The construction is expected to be completed before the water is impounded next year.

Huqi Auxiliary Dam: All projects except the wave wall will be completed by the end of the year.

Water inlet and outlet: The first phase of concrete pouring for the upper reservoir gate well was completed at the end of October, and the concrete pouring for the water inlet and outlet was completed by the end of October.

Reservoir bank protection: Reservoir basin treatment and reservoir bank excavation will be basically completed by the end of the year.

2. C2 standard (civil engineering construction of water diversion system)

Construction assistance: All construction auxiliary projects have been completed.

1# water diversion system:

1# upper inclined shaft: The concrete of the lower bend section of the upper inclined shaft was completed in November; the sliding form concrete was completed in December; the sliding form form was dismantled and completed in December ; Preparations for concrete construction of the upper curved section of the inclined shaft are completed.

1# lower inclined shaft: the sliding form concrete was completed in September; the sliding form formwork was dismantled in September; the concrete of the lower bend section of the inclined shaft was completed in September; the grouting of the lower inclined shaft was completed in December.

1# and 2# high-pressure branch pipes: the steel pipe installation and backfilling with concrete will be completed in October;

1# branch pipe: the branch pipe lining with concrete will be completed in December; 50% of the grouting work was completed in December.

Zhongping Cave Maintenance Access Cave: The lining concrete construction will be completed in December.

2# water diversion system:

2# upward inclined shaft: Excavation expansion and support construction will be completed in October; track installation, strip concrete and sliding form trolley will be installed in December.

2# inclined shaft: The installation of the sliding formwork was completed in October; the sliding form concrete construction was completed in December; the concrete for the lower bend section of the inclined shaft was completed in December; the dismantling of the sliding formwork of the inclined shaft was completed in December ; The grouting construction preparation work will be completed in December.

3# and 4# high-pressure branch pipes: Steel pipe installation and backfilling with concrete will be completed in December;

Other projects:

Prototype observation: Prototype observation drilling will be completed in October hole construction.

Temporary projects:

Upper Reservoir Contractor Camp Project: 50% of the project volume will be completed in December.

3. C3 standard (civil engineering construction of underground powerhouses and part of the tailwater system)

Construction assistance: All construction auxiliary projects have been completed.

Main and auxiliary workshops: The excavation of the main and auxiliary workshops was completed on January 6, 2011, and handed over to the electromechanical installation contractor on January 17.

Main transformer hole: The excavation of the main transformer hole was completed on October 20, 2010. The lining of the 2#, 3#, and 4# busbar holes has been completed. The lining of the 1# busbar hole is expected to be completed by the end of August.

Switch station: The slope concrete construction of the switch station started in September 2010 and is expected to be completed by the end of December 2011.

500kv outlet hole: The excavation of the 500kv outlet hole was completed on May 1, 2011, and the lining is expected to be completed by the end of December.

Tailrace tunnel in this bid section: The tailrace tunnel in this bid section will be installed with steel pipes, concrete backfilled, and lined. It is expected to complete the installation of steel pipes and concrete backfilling of the 1# and 2# tailrace branch pipes by the end of the year.

4. C4 standard (civil engineering construction of the lower reservoir and part of the tailwater system)

Construction assistance: All construction auxiliary projects have been completed.

Dam: The curtain grouting construction of the dam toe plate was completed in September; the rolling mortar construction of the upstream face of the dam was completed in October; the concrete construction of the dam face plate was completed in December;

Lower reservoir inlet and outlet:

1# inlet/outlet: The concrete construction of the gradient section and the gate well and chamber section will be completed in September; the concrete construction of the diffusion section and the waste barrier section will be completed in November; it will be completed in December The second phase of concrete construction for the front pool section and the waste rack will be completed; the concrete for the square section will be completed in December.

2# water inlet/outlet: The concrete construction of the gradient section and the gate shaft and chamber section will be completed in September; the concrete construction of the gate shaft will be completed in December, and the concrete construction of the square section, diffusion section and waste barrier section will be completed in December 90.

Spillway project: The concrete construction of the spillway weir was completed at the end of September, and the hoisting was completed in early October; the concrete construction of the gate and hoist room is expected to be completed on December 30, 2011; the spillway discharge channel section and the pick-up nose The concrete of the ridge section was completed in December;

Reservoir area project: The construction of dry masonry and drainage ditch for the reservoir bank protection was completed at the end of September; the earthwork excavation on the left bank was completed at the end of September.

5. EMI1 standard (mechanical and electrical installation engineering construction)

Unit 1: In May 2011, the draft pipe concrete pouring was completed; in July 2011, the volute/seat ring hoisting was completed and hydraulic pressure test; the concrete pouring of the volute layer was completed in September 2011; the concrete pouring of the turbine layer is expected to be completed by the end of the year.

Unit 2: Completed the draft pipe concrete pouring in June 2011; completed the volute/seat ring hoisting and hydraulic test in October 2011; completed the volute layer concrete pouring in November 2011;

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Unit 3: The draft pipe concrete pouring was completed in July 2011; the volute/seat ring hoisting and hydraulic test were completed in December 2011.

Unit 4: The draft pipe concrete pouring was completed in August 2011.

The planned investment in 2012 is 870 million yuan. This investment plan is only a 2012 investment plan proposal reported to the superior unit State Grid Xinyuan Holdings Co., Ltd. The specific investment plan is subject to review and approval by State Grid Xinyuan Holdings Co., Ltd. This can only be determined later.

(1) Main Project

1. C1 Standard (Upper Reservoir Civil Engineering Construction)

Round Reservoir Highway: All dam top road pavement projects will be completed in March and ancillary works.

Main dam: The dam face concrete pouring construction will be completed in mid-January 2012. The filling construction of EL743.5 to EL737.7 and the construction of the wave wall will be completed by March 2012. It is expected to be April 2012. Water storage began and will be completed in October.

Wanwei Auxiliary Dam: Before the upper reservoir is impounded, the filling of the Wanwei Auxiliary Dam body will be completed; the concrete pouring on the top of the Wanwei Auxiliary Dam will be completed; and the construction of the bank protection project of the Wanwei Auxiliary Dam section will be completed.

Huqi Separation and Auxiliary Dam: Complete all projects of Huqi Separation and Auxiliary Dam before June.

Water inlet and outlet: The installation and construction of the upper reservoir accident gate well gate, hoist and waste rack were completed at the end of February.

Diversion tunnel sealing: Construction of the upper reservoir diversion tunnel sealing began in December and is expected to be completed by the end of March 2013.

2. C2 standard (civil engineering construction of water diversion system)

1# water diversion system:

1# upper tunnel: lining concrete construction will be completed in June; The grouting construction was completed in October.

No. 1 Incline Shaft: The concrete construction of the upper bend section of the Incline Shaft was completed in May; the grouting construction of the Incline Shaft was completed in October.

Construction branch tunnel #5: The sealing concrete and grouting construction of the 1# system will be completed in October, and the concrete construction of the solid section of the 2# system will be completed in November.

1# lower inclined shaft: the concrete construction of the upper bend section of the lower inclined shaft was completed in May;

1# middle level hole: the lining concrete was completed in July; the middle level hole and Grouting construction of the upper curved section of the lower inclined shaft.

4# construction branch tunnel: The 1# system sealing concrete and grouting construction was completed in October; the 2# system sealing concrete construction of the 4# construction branch tunnel was completed in December.

2# water diversion system:

2# upper inclined shaft: the sliding form concrete of the inclined shaft will be completed in June; the concrete construction of the lower bend section of the inclined shaft will be completed in June; the sliding form concrete of the inclined shaft will be completed in July The formwork body was dismantled; the grouting construction of the inclined shaft was completed in October; the concrete construction of the upper bend section of the inclined shaft was completed in December.

2# Upper Tunnel: The concrete lining will be completed in December; the grouting construction of the upper tunnel and the upper bend section of the inclined shaft will be completed in December.

2# Zhongping Cave: The concrete construction on the upstream side of Zhongping Cave was completed in July; the concrete construction on the downstream side of Zhongping Cave was completed in October; the lining of the makeshift section of Zhongping Cave 90 was completed in December; the Zhongping Cave was completed in December Grouting construction of the tunnel and the curved section of the inclined shaft 90;

No. 2 lower inclined shaft: The concrete construction of the upper curved section of the inclined shaft was completed in August.

No. 2 branch pipe: The concrete lining will be completed in June, and the grouting of the branch pipe and branch pipes will be completed in July.

2# Xiapingdong: The lining concrete construction will be completed in August; the concrete construction of the makeshift section will be completed in October; the grouting construction will be completed in November.

Other projects:

Drainage corridor: The drainage corridor curtain grouting and drainage hole construction will be completed in June.

3. C3 standard (civil engineering construction of underground factory buildings and part of the tailwater system)

Drainage pipes and traffic shafts: The shaft concrete lining and structural concrete pouring will be completed by the end of June.

Tailrace gate hole: The installation of hoist maintenance equipment for the tailrace gate hole will begin in mid-May and is expected to be completed in early July; the installation of the tailrace gate hole hoist will begin in early July and is expected to be completed by the end of August; the tailrace gate hole hoist installation will begin in early July. The installation of the sluice gate gate is expected to be completed by the end of August.

Tail water surge well: The consolidation grouting of the 1# tail water surge well was completed at the end of August, and the consolidation grouting of the 2# tail water surge well was completed at the end of December 80.

In November 2012, the 1# tailrace system was ready for water filling.

4. C4 standard (civil engineering construction of the lower reservoir and part of the tailwater system)

Dam: Complete the dam face concrete construction before March 1, 2012; October 2012 The construction of the dam crest wave wall was completed; the construction of the dam crest pavement and ancillary structures was completed in November.

Lower reservoir inlet and outlet:

1# inlet/outlet: The installation of the waste rack was completed in January 2012, and the accident repair gate hoist metal knot installation and accidents were completed in March Inspect gate installation.

2# water inlet/outlet: The installation of the waste rack, the accident repair gate hoist and the installation of the accident repair gate will be completed in March;

Tailrace tunnel project:

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1# Tailrace Tunnel: The concrete lining construction of the round tunnel section will be completed in June; the backfilling and consolidation grouting construction will be completed in August.

2# tailrace tunnel: The lining construction of the round tunnel section was completed in September; the sealing of the 1# branch tunnel was completed in November;

In November 2012, the 1# tailrace system Have water filling conditions.

Spillway project: The installation of gates and hoists will be completed at the end of March;

Reservoir area project: All support in the reservoir area will be completed before May 1, 2012, and conditions for water storage will be met.

5. Progress of equipment installation and debugging projects

Public system of the whole plant: system reverse power supply will be completed in December; main transformer, GIS, 500KV cable, closed current, etc. will be completed in October Installation and partial commissioning of primary electrical equipment in the entire plant; In October, the installation and partial commissioning of electrical secondary equipment such as technical water supply and other hydraulic mechanical public systems, cables and other primary electrical utility systems, lighting communications/fire alarms, etc. were completed.

Unit 1: Concrete pouring of the power generation layer was completed in February; runner hoisting was completed in May; stator hoisting was completed in September; rotor hoisting was completed in October; unit assembly was completed in December.

Unit 2: The concrete pouring of the volute layer was completed in January; the concrete pouring of the turbine layer was completed in February; the concrete pouring of the power generation layer was completed in April; the runner hoisting was completed in July; the stator hoisting was completed in December.

Unit 3: Complete the hydraulic pressure test of the volute in January; complete the concrete pouring of the volute layer in March; complete the concrete pouring of the turbine layer in April; complete the concrete pouring of the power generation layer in June; complete the runner in September Hoisting.

Unit 4: Complete the hydraulic pressure test of the volute in March; complete the concrete pouring of the volute layer in May; complete the concrete pouring of the turbine layer in June; complete the concrete pouring of the power generation layer in August; complete the runner in November Hoisting.

(2) Other project progress arrangements

1. Q4 bid (construction of sand and gravel aggregate and concrete production system project of lower reservoir)

According to project construction If necessary, it is expected to provide approximately 15,000t of sand and gravel aggregate and approximately 150,000m3 of concrete to other bid section contractors throughout the year.

2. The construction of greening, landscape and sewage treatment system projects has been completed.